U.S. top infectious disease expert Anthony Fauci said on Friday he is "cautiously optimistic" that the United States would have a safe and effective COVID-19 vaccine this late fall or early winter. [Photo/Xinhua]
Fauci "cautiously optimistic" about safe, effective COVID-19 vaccine in late fall, early winter
U.S. top infectious disease expert Anthony Fauci said on Friday he is "cautiously optimistic" that the United States would have a safe and effective COVID-19 vaccine this late fall or early winter.
Xinhua丨
August 1, 2020
